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Updated Note (markdown)

Elian Doran 2025-10-30 09:39:03 +02:00
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Note.md

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Note is a central entity in Trilium. Main attributes of note are title and content.
### Note types
* [[text note|Text notes]] - this is default note type which allows you to put rich text, images etc.
* [[code note|Code notes]] - some kind of formal code, typically programming language (e.g. JavaScript) or data structure (e.g. JSON)
* [image note](https://github.com/zadam/trilium/wiki/Images) - represents single image
* file note - represents uploaded file (e.g. docx MS Word document).
* render HTML note - this works as an output screen of attached [[scripts]]
* [[saved search]] note - contains saved search query and dynamically displays result of the search as its sub-notes
* [[relation map]] note - visualizes notes and their relations
* [[book note]] - displays its children notes, useful for reading many short notes
* [[mermaid]] - create diagrams and flowcharts using [mermaid.js ↗](https://github.com/mermaid-js/mermaid)
* [[canvas note]] - allows hand drawn notes and basic diagraming on an infinite canvas using [excalidraw ↗](https://github.com/excalidraw/excalidraw)
In Trilium there's no specific "folder" note type. Any note can have children and thus be a folder.
### Root note
There's one special note called "root note" which is root of the note tree. All other notes are placed below it in the structure.
### Tree structure
Importantly, note itself doesn't carry information on its placement in note tree. See [[cloning]] for details.
Tree structure of notes can resemble file system - but compared to that notes in Trilium can act as both file and directory - meaning that note can both have its own content and have children. "Leaf note" is a note which doesn't have any children.
### Deleting / undeleting notes
When you delete a note in Trilium, it is actually only marked for deletion (soft-delete) - the actual content, title, attributes etc. are not deleted, only hidden.
Within (by default) 7 days, it is possible to undelete these soft-deleted notes - open Recent Changes dialog, and you will see a list of all modified notes including the deleted ones. Notes available for undeletion have a link to do so. This is kind of "trash can" functionality known from e.g. Windows.
Clicking an undelete will recover the note, it's content and attributes - note should be just as before being deleted. This action will also undelete note's children which have been deleted in the same action.
To be able to undelete a note, it is necessary that deleted note's parent must be undeleted (otherwise there's no place where we can undelete it to). This might become a problem when you delete more notes in succession - the solution is then undelete in the reverse order of your deletion.
After the 7 days (configurable) the notes will be "erased" - their title, content, revisions and attributes will be erased, and it will not be possible anymore to recover them (unless you restore [[backup]]).
## See also
* [[Read-only note]]
See https://docs.triliumnotes.org/user-guide/concepts/notes.